/* roulang page: index */
:root {
            --primary: #1E40AF;
            --primary-dark: #1E3A8A;
            --accent: #06B6D4;
            --amber: #F59E0B;
            --bg-light: #F8FAFC;
            --bg-dark: #0F172A;
            --text-main: #334155;
            --text-heading: #0F172A;
            --text-muted: #64748B;
        }

        html {
            scroll-behavior: smooth;
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        }

        body {
            background-color: var(--bg-light);
            color: var(--text-main);
            line-height: 1.75;
            overflow-x: hidden;
        }

        /* 顶部与导航 */
        .glass-nav {
            backdrop-filter: blur(12px);
            background-color: rgba(255, 255, 255, 0.92);
        }

        /* 电影沉浸感暗底首屏样式 */
        .cinema-hero {
            background: linear-gradient(180deg, rgba(15, 23, 42, 0.75) 0%, rgba(15, 23, 42, 0.95) 100%), url('/assets/images/3e1a791db4987490.jpg') center/cover no-repeat;
        }

        /* 统一卡片与容器阴影 */
        .card-custom {
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            border-radius: 12px;
            box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
        }

        .card-custom:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 24px -6px rgba(0, 0, 0, 0.12), 0 8px 16px -4px rgba(0, 0, 0, 0.08);
        }

        /* 科技渐变字 */
        .text-gradient {
            background: linear-gradient(135deg, #38BDF8 0%, #818CF8 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        /* 手风琴平滑高度动画 */
        .accordion-content {
            transition: max-height 0.3s ease-out, opacity 0.3s ease;
            max-height: 0;
            overflow: hidden;
            opacity: 0;
        }

        .accordion-content.active {
            max-height: 500px;
            opacity: 1;
        }